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23013224 = 2313221281
BaseRepresentation
bin101011111001…
…0011101101000
31121022012012122
41113302131220
521342410344
62141130412
7366415643
oct127623550
947265178
1023013224
1111a991a3
127859a08
1349c9ac0
1430b0a5a
152048aee
hex15f2768

23013224 has 16 divisors (see below), whose sum is σ = 46469220. Its totient is φ = 10621440.

The previous prime is 23013209. The next prime is 23013233. The reversal of 23013224 is 42231032.

It can be written as a sum of positive squares in 2 ways, for example, as 18645124 + 4368100 = 4318^2 + 2090^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110537 + ... + 110744.

Almost surely, 223013224 is an apocalyptic number.

It is an amenable number.

23013224 is an abundant number, since it is smaller than the sum of its proper divisors (23455996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23013224 is a wasteful number, since it uses less digits than its factorization.

23013224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221300 (or 221296 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23013224 is about 4797.2100225027. The cubic root of 23013224 is about 284.4411908717.

Adding to 23013224 its reverse (42231032), we get a palindrome (65244256).

The spelling of 23013224 in words is "twenty-three million, thirteen thousand, two hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 221281 442562 885124 1770248 2876653 5753306 11506612 23013224